US5355874A - Oropharyngeal device - Google Patents

Oropharyngeal device Download PDF

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Publication number
US5355874A
US5355874A US07/915,702 US91570292A US5355874A US 5355874 A US5355874 A US 5355874A US 91570292 A US91570292 A US 91570292A US 5355874 A US5355874 A US 5355874A
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United States
Prior art keywords
shaped
extended body
recess
securing flange
straight portion
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Expired - Fee Related
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US07/915,702
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English (en)
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Volker Bertram
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/0497—Tube stabilizer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0495—Mouthpieces with tongue depressors

Definitions

  • An oropharyngeal tube is fitted to a patient after intubation by a tracheal tube and serves a number of purposes:
  • the tube should act as a bite block to prevent the inserted tracheal tube from being squeezed off or even bitten off.
  • the oropharyngeal tube should, as far as possible, hold the tongue and prevent it from falling back and closing the airways.
  • This results in the anatomical shape of the tube which comprises, in succession as seen from the side, a transverse securing flange, which is located externally on the patient's lips, an adjoining short, substantially straight portion and in turn, adjoining the latter, a long, curved portion.
  • the Berman type has an open cross-section, generally a T or double-T profile. Since it is not possible to incorporate a bite block, this oropharyngeal tube is always made of a hard material.
  • the Guedel type has a closed, generally transverse oval cross-sectional shape. Either it consists entirely of hard material or the actual tube consists of soft rubber or plastics, it being necessary to provide in the region of the straight portion a bite block of hard material which is generally a separate part that is pushed over the actual tube.
  • Such oropharyngeal tubes are described, for example, in the January 1978 edition of the journal “Health Devices” in the article “Artificial Airways” starting on page 67.
  • the closed cross-sectional shape of the Guedel type gives rise to problems with the cleaning of the tube for reuse, since it is very difficult to monitor the state of cleanliness.
  • the Berman type As a result of its cross-sectional shape the Berman type has a large number of free edges which, because it always has to be made of hard material, can easily result in injury to the patient.
  • the described holding means also has shortcomings, since every time the holding means for the oropharyngeal tube is released the tracheal tube is automatically also detached from its securing means, so that in such a case the tracheal tube can very easily become dislodged or slip out.
  • the greatest disadvantage is, however, that access to the mouth for cleaning purposes is almost completely blocked, and aspiration is difficult to carry out, even via the tube. From the point of view of manufacture, this tube with the band is far too expensive.
  • the oropharyngeal device comprises an extended body having a comparatively shorter approximately straight portion and a comparatively longer curved portion adjoining the straight portion, the extended body having a substantially constant U-shaped transverse cross-section along an entire length thereof to provide a U-shaped opening extending along one side thereof; a transverse securing flange attached to an end of the straight portion remote from the curved portion; and a hard bite block formed integrally with the extended body and located in the vicinity of the straight portion.
  • the bite block is made of a material also used for the extend body.
  • One side of the transverse securing flange is provided with a U-shaped first recess conforming to the U-shaped transverse cross-section of the extended body and a second recess in a side of the securing flange remote from the side having the U-shaped first recess.
  • the U-shaped first recess is positioned in the securing flange to provide a mouth for the U-shaped opening.
  • the second recess is C-shaped and is dimensioned so that an endotracheal tube can be snapped therein and held fixed therein.
  • the extended body has a wall thickness such that the tube body is elastic over the entire length thereof but cannot at least cannot be closed by compression or compressed in operation.
  • the wall thickness of the straight portion is twice the wall thickness of the curved portion.
  • the extended body in an additional embodiment can have a longitudinally extending advantageously concave channel on a side opposite to the U-shaped opening, the channel having a base in alignment with a base of the C-shaped second recess.
  • a smallest distance between the longitudinally extending channel and the U-shaped opening of the extended body is greater than a wall thickness of the extended body. Also in a preferred embodiment a height of the cross-section in the straight region of the extended body is greater in the vicinity of the smallest distance than in the vicinity of the U-shaped opening.
  • At least one perpendicularly projecting extension piece can be provided at the base of the C-shaped second recess extending from a side of the transverse securing flange remote from the extended body.
  • the extension piece can have a length approximately equal to at least a width of a plaster strip and has a thickened portion at a free end thereof.
  • the device can also have two fastening means for insertion into a fastening band, the fastening means being attached to the transverse securing flange and extending from a side of the securing flange remote from the extended body.
  • Each of the fastening means has a projecting nipple protruding above and below a center of the transverse securing flange and the transverse securing flange is provided with two eyelets through which the fastening band can be passed.
  • the device of the invention is closed on one side and is open on the other side, firstly it is possible to insert it easily and with little risk of injury and, secondly, the open side allows the inside surface to be cleaned simply and thoroughly. Because the inside surface is constant and U-shaped, an aspiration catheter can be introduced into the tube very easily, that is to say with little resistance.
  • bite block is made of the same material as the whole device and is formed integrally therewith simplifies and reduces the cost of manufacture which can then be effected using an injection molding process.
  • the material chosen is a plastics material which has adequate resistance where the material is thicker, such as in the region of the bite block, but which enables the material thickness chosen for the curved portion of the extended body to be such that there the extended body is elastic in its longitudinal direction, that is to say deviating from the curved shape of its rest condition, while the U-shaped cross-section cannot be deformed by any action of the intubated patient, that is to say there is no risk of this artificial airway becoming compressed.
  • the second recess in the securing flange and the C-shape thereof allows a tracheal tube to be pushed in and locked into place.
  • the tracheal tube can be secured, by strips of plaster, to a corresponding extension piece extending outwards from the securing flange on the side remote from the extended body.
  • the length thereof must correspond to at least the width of the strip of plaster and there is preferably a thickened portion on the free end of the extension piece to prevent the plaster strip from slipping off.
  • the secure position of the tracheal tube on the oropharyngeal tube is further increased by a channel extending in the longitudinal direction on the narrow side of the central portion, which channel is located on the narrow side opposite the U-shaped inside surface and in which channel a tracheal tube that is pressed into the C-shaped recess of the securing flange comes to rest.
  • the channel has a curved cross-sectional shape the base of which is in alignment with the base of the C-shaped recess in the securing flange.
  • Bite protection is achieved by providing that the material thickness in the region of the central portion between the U-shaped inside surface and the channel is always greater than the material thickness in the region of the curved portion.
  • the cross-section in this central portion, seen in elevation, is greater than at the side in the region of the U-shaped inside surface.
  • the extended body according to the invention can be fastened using securing devices, preferably using nipples that project forwards from the securing flange, by means of a rubber band around the rear of the head or neck of the patient.
  • securing devices preferably using nipples that project forwards from the securing flange, by means of a rubber band around the rear of the head or neck of the patient.
  • a tracheal tube that is rigidly connected to the oropharyngeal extended body in the described manner is also securely held thereby.
  • FIG. 1 is a side view of the oropharyngeal tube
  • FIG. 2 is a plan view of the tube shown in FIG. 1 from below,
  • FIG. 3 is a cross-sectional view through the tube taken along the section line A-B of FIG. 1,
  • FIG. 4 is a cross-sectional view through the tube taken along the section line C-D of FIG. 1,
  • FIG. 5 is a cross-sectional view through the tube taken along the section line E-F of FIG. 1, and
  • FIG. 6 is a front view of the securing flange.
  • FIG. 1 shows in side view--like all positional details, referring to the in situ position of the device--the typical form of an oropharyngeal device: in the side view it is possible to see the securing flange 1 from which extend, in one direction, i.e. away from the patient, the nipples 15 for securing a rubber or fastening band 27, and the extension piece 13 with its thickened portion 14 at the free end, and the two eyelets 20.
  • the securing flange 1 adjacent to the securing flange 1, there is first a short, approximately straight portion 3 and in turn, adjacent to the latter, a long, curved portion 4, which portions together form the extended body 2. Where the short portion 3 merges into the long curved portion 4 there is a slight kink, in conformity with the anatomical conditions at the site of use.
  • FIG. 2 shows the same oropharyngeal device viewed from below.
  • the U-shaped opening 6 At its free end, which is slanted relative to the longitudinal axis of the extended body and lies approximately perpendicular to the plane of the securing flange, the U-shaped opening 6 has a constant cross-section over the entire length of the tube body.
  • the external contour 7 also is U-shaped, FIG. 2 also showing the wall thickness 12 of the extended body at the free end, which thickness remains the same over the whole of portion 4, but in other embodiments can decrease towards the free end.
  • the U-shaped opening 6 is unchanged over the entire length of the extended body 2 and conforms also to the first, U-shaped recess 8 in the securing flange 1 through which proves a mouth for it.
  • the wall thickness is greater than the material thickness 12 in the curved portion, as can be seen in the cross-sectional views in FIGS. 3 to 5:
  • the curved portion also has a U-shaped outer contour 7, that outer contour changes at the point of transition into the straight portion, as shown in FIG. 4, to an approximately rectangular cross-section, the side thereof which is opposite from the open side having a U-shaped opening 6 forms a shallow channel 10 extending in the longitudinal direction of the extended body 2.
  • the wall thickness of the straight portion increases, as does also the depth of the channel opposite the open side, the cross-sectional shape of the channel being concavely curved.
  • This cross-sectional shape is shown in FIG. 3, and it can be seen that in that region of the straight portion 3 the smallest distance 11 between the deepest point of the channel 10 and the deepest point of the U-shaped opening 6 is considerably greater, by approximately a factor of 2, than the wall thickness 12 in the curved portion 4 of the extended body.
  • the wall thickness inside the cross-section increases from the free ends of the profile towards the region remote therefrom, so that the thickness of the profile in the region of the free ends is less than in the region of smallest distance 11, where it is approximately twice the wall thickness 12.
  • the height 21 of the tube body in the vicinity of the smallest distance 11 is greater than the height 23 in the vicinity of the U-shaped opening 6.
  • the cross-sectional shape shown in FIG. 3 is retained over the region of the short, straight portion 3 and is present also at the transition to the securing flange 1, where it opens, without a step, into the U-shaped first recess 8, which corresponds to the U-shaped opening 6 of the extended body, and into a second, C-shaped, recess 9 that is located opposite this first recess 8 and is used for snapping a tracheal tube into place.
  • This C-shaped second recess is of a diameter smaller than the width of the channel 10 in the outer side of the straight portion 3, but the deepest point or base of the channel 10 is in alignment with the deepest point or base of the C-shaped second recess 9.
  • extension piece 13 Also in alignment therewith is one edge of the extension piece 13, which projects from the securing flange 1 in the direction away from the extended body, so that a tracheal tube that has been pressed into the recess 9 can be secured by winding plaster or the like around the extension piece 13.
  • the extension piece 13 has at its free end a thickened portion 14 which does not, however, extend into the region of the C-shaped recess 9 to prevent a tracheal tube from lying flat along the outer side of the extension piece 13.
  • nipples Extending in the same direction are two nipples, arranged one above and one below the recesses 8 and 9, approximately in the center of the securing flange 1, which nipples likewise have a thickened free end but are shorter than the extension piece 13.
  • the ends of the fastening or rubber band 27 provided with suitable slits can be pressed over those nipples 15, the rubber band being fastened around the rear of the head or the neck of a patient to secure the oropharyngeal tube.
  • the combination of the manufacturing material chosen, for example polyethylene or EVA, together with the dimensioning of the oropharyngeal device, has the result that the straight portion 3 is extremely resistant, rigid and bite-resistant but the long curved portion 4 is not completely rigid but is somewhat elastic, so that the introduction of the device according to the invention is associated with little risk of injury to the patient.
  • the rigidity of the curved portion 4 is nevertheless sufficient to prevent the open profile being compressed by the muscle action of the patient.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Otolaryngology (AREA)
  • Emergency Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)
US07/915,702 1990-11-22 1991-11-21 Oropharyngeal device Expired - Fee Related US5355874A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4037084A DE4037084A1 (de) 1990-11-22 1990-11-22 Oropharyngeal-tubus
DE4037084 1990-11-22
PCT/EP1991/002197 WO1992009325A1 (de) 1990-11-22 1991-11-21 Oropharyngeal-tubus

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US5355874A true US5355874A (en) 1994-10-18

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US07/915,702 Expired - Fee Related US5355874A (en) 1990-11-22 1991-11-21 Oropharyngeal device

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US (1) US5355874A (enrdf_load_stackoverflow)
DE (1) DE4037084A1 (enrdf_load_stackoverflow)
GB (1) GB2256370B (enrdf_load_stackoverflow)
WO (1) WO1992009325A1 (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649534A (en) * 1996-06-06 1997-07-22 Briggs, Iii; Stephen W. Endotracheal tube bite block and anti-bite assembly
DE19730693A1 (de) * 1997-07-17 1999-02-11 Hartmut Fabiunke Verfahren zur Aufrechterhaltung der Zufuhr lebenserhaltender Stoffe, sowie Halteeinrichtung
US6144867A (en) * 1998-09-18 2000-11-07 The United States Of America As Represented By The Secretary Of The Army Self-piercing pulse oximeter sensor assembly
US6253098B1 (en) 1998-09-09 2001-06-26 The United States Of America As Represented By The Secretary Of The Army Disposable pulse oximeter assembly and protective cover therefor
US6256524B1 (en) 1998-09-09 2001-07-03 The United States Of America As Represented By The Secretary Of The Army Pulse oximeter sensor combined with a combination oropharyngeal airway and bite block
US6263223B1 (en) 1998-09-09 2001-07-17 The United States Of America As Represented By The Secretary Of The Army Method for monitoring arterial oxygen saturation
US6266547B1 (en) 1998-09-09 2001-07-24 The United States Of America As Represented By The Secretary Of The Army Nasopharyngeal airway with reflectance pulse oximeter sensor
US20020095119A1 (en) * 2000-06-29 2002-07-18 Bertoch Todd M. Catheter securing device
US6470200B2 (en) 2000-02-11 2002-10-22 The United States Of America As Represented By The Secretary Of The Army Pacifier pulse oximeter sensor
US6474332B2 (en) * 1997-10-03 2002-11-05 Wisconsin Medical Incorporated Bite block
US6533761B2 (en) 2000-05-31 2003-03-18 The United States Of America As Represented By The Secretary Of The Army Catheter securing device and bite block
US6755191B2 (en) 2000-02-22 2004-06-29 The United States Of America As Represented By The Secretary Of The Army Securing device for an endotracheal tube
WO2004060311A3 (en) * 2002-12-30 2004-11-18 Quiescence Medical Inc Apparatus and methods for treating sleep apnea
US20050217678A1 (en) * 2004-04-01 2005-10-06 Mccormick James J Respiratory mask having intraoral mouthpiece with large sealing area and multiple sealing configuration
US20060081245A1 (en) * 2004-10-01 2006-04-20 Gould Kion H Surgical tube guard
US7171962B1 (en) * 2005-01-14 2007-02-06 Gloria Turner Bloem Soft oral airway for intravenous anesthesia and method of use
US20070068535A1 (en) * 2003-05-20 2007-03-29 Colman Joshua L Endoscopic bite block
US20080065209A1 (en) * 2002-12-30 2008-03-13 Pflueger D Russell Stent for maintaining patency of a body region
US20080167725A1 (en) * 2002-12-30 2008-07-10 Quiescence Medical, Inc. Stent for maintaining patency of a body region
US20080308108A1 (en) * 2007-06-14 2008-12-18 Melanie Paige Diorio Oral cannula
US20090064998A1 (en) * 2007-09-10 2009-03-12 Bassili Hosni R Breathing Tube Bite Inhibitor
US20100065062A1 (en) * 2008-09-17 2010-03-18 Wolfe Tory Medical, Inc. Temporary pharyngeal airway
US8146600B2 (en) 2003-07-22 2012-04-03 Quiescence Medical, Inc. Apparatus and methods for treating sleep apnea
US20150352304A1 (en) * 2015-03-11 2015-12-10 Gemguardian, LLC Bite Proof Endotracheal Tube
US9265649B2 (en) 2010-12-13 2016-02-23 Quiescence Medical, Inc. Apparatus and methods for treating sleep apnea
US10413689B2 (en) * 2012-07-06 2019-09-17 Peter David Eaton Endoscopic and transesophageal oropharyngeal airway

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9119703D0 (en) * 1991-09-14 1991-10-30 Dingley John Medico-surgical device
EP0911050A3 (de) * 1997-10-16 1999-12-22 Rolf Rainer Scheu Leitungselement für den Anschluss mindestens einer Atemgasleitung für einen Patienten
DE102011086421B4 (de) 2011-08-08 2016-06-09 Julius-Maximilians-Universität Würzburg Vorrichtung zum Beißschutz
DE102018132459A1 (de) 2018-12-17 2020-06-18 Saurer Spinning Solutions Gmbh & Co. Kg Kreuzspulen herstellende Textilmaschine mit einer Kreuzspulentransporteinrichtung
DE102018132462A1 (de) 2018-12-17 2020-06-18 Saurer Spinning Solutions Gmbh & Co. Kg Kreuzspulen herstellende Textilmaschine mit einer Kreuzspulentransporteinrichtung

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Title
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Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649534A (en) * 1996-06-06 1997-07-22 Briggs, Iii; Stephen W. Endotracheal tube bite block and anti-bite assembly
DE19730693A1 (de) * 1997-07-17 1999-02-11 Hartmut Fabiunke Verfahren zur Aufrechterhaltung der Zufuhr lebenserhaltender Stoffe, sowie Halteeinrichtung
DE19730693C2 (de) * 1997-07-17 2000-08-10 Hartmut Fabiunke Halteeinrichtung mit an deren Enden angeorderten Haltern für einen Tubus
US6474332B2 (en) * 1997-10-03 2002-11-05 Wisconsin Medical Incorporated Bite block
US6263223B1 (en) 1998-09-09 2001-07-17 The United States Of America As Represented By The Secretary Of The Army Method for monitoring arterial oxygen saturation
US6266547B1 (en) 1998-09-09 2001-07-24 The United States Of America As Represented By The Secretary Of The Army Nasopharyngeal airway with reflectance pulse oximeter sensor
US6253098B1 (en) 1998-09-09 2001-06-26 The United States Of America As Represented By The Secretary Of The Army Disposable pulse oximeter assembly and protective cover therefor
US6256524B1 (en) 1998-09-09 2001-07-03 The United States Of America As Represented By The Secretary Of The Army Pulse oximeter sensor combined with a combination oropharyngeal airway and bite block
US6144867A (en) * 1998-09-18 2000-11-07 The United States Of America As Represented By The Secretary Of The Army Self-piercing pulse oximeter sensor assembly
US6470200B2 (en) 2000-02-11 2002-10-22 The United States Of America As Represented By The Secretary Of The Army Pacifier pulse oximeter sensor
US6755191B2 (en) 2000-02-22 2004-06-29 The United States Of America As Represented By The Secretary Of The Army Securing device for an endotracheal tube
US6533761B2 (en) 2000-05-31 2003-03-18 The United States Of America As Represented By The Secretary Of The Army Catheter securing device and bite block
US6890322B2 (en) 2000-06-29 2005-05-10 The United States Of America As Represented By The Secretary Of The Army Catheter securing device
US20020095119A1 (en) * 2000-06-29 2002-07-18 Bertoch Todd M. Catheter securing device
WO2004060311A3 (en) * 2002-12-30 2004-11-18 Quiescence Medical Inc Apparatus and methods for treating sleep apnea
US8104478B2 (en) 2002-12-30 2012-01-31 Quiescence Medical, Inc. Apparatus and methods for treating sleep apnea
US7992566B2 (en) 2002-12-30 2011-08-09 Quiescence Medical, Inc. Apparatus and methods for treating sleep apnea
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Also Published As

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GB2256370B (en) 1994-09-07
GB9214973D0 (en) 1992-09-16
DE4037084C2 (enrdf_load_stackoverflow) 1993-07-22
DE4037084A1 (de) 1992-05-27
GB2256370A (en) 1992-12-09
WO1992009325A1 (de) 1992-06-11

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